Compressor for refrigerating apparatus



hmmm W.V NUS COMPRESSOR FOR REFRIGERATING APPARATUS Emily 2, MM5.

Filed June 25. 1924 lli Patented July 21, 1925.

. STATE-s" PATENT vOFFICE.

WILLIAM Nuss, er Hensema", New JERSEY.

comrnnsson'ron zanrnrennarme Armeniens.

Applica-nexium 'June as, 1934. serial no. 122,:10;

'To all whom .t-may* comme:

lilo it known that I, WILHAM Nuss, a

citizen of Gcrmany,and a resident of Ho` hohen, in the county o1" Hudson and State of New Jersey, have invented a new and improved Compressor for Refrigerating: Apparatus, of which the 'following is a fulh-clear, and exact description. y

This invention relates to an improvement in compressorsl for refrigerating apparatus and is an improvement on the apparatus shovvn'in United States Patent No. 1,489,143

issued tothe applicant 'on April 1, 1924.

An obechol the" invention-is to provide means W ierebyfthe 'flow of a certainfluid in a refrigerat' apparatus is 'stopped whenever a reduc fon! of pressure beyond au denite amount occurs or leak in the fluid system.

The invention is illustrated in the drawwhen there is a ings, of which Figure `l is"l a vertical sectional view thoroughv the apparatus; and

Figure 2 is a horizontal section through the collapsib1e-walled chamber.

The form of the invention shown in the drawingsV is a preferred form, lalthough it is understood that modifications in the construction and Iarrangement of the parts and in the character of the materials used may 4be adopted Without departing `from the spirit of the invention' as set forth in the appended claims.

lin, its general aspect the invention comprises a chamber containing liquid, within which a. flexible 'refrigerant-containing chamber is disposed. The walls of this lapsed to cause a circulation of the reriger ciated with a collapsible-Walled auxiliary chamber connected to the main chamber,A

which auxiliary chamber upon expansion and contraction will nausea variation in the pressure of the liquid contained in the main chamber. `)In order' to provide that the main chamber will be cut on. from the aux- Ailiary chamber Whenever the pressure is reduced below a given minimum, or Whenever a leali occurs in the auxiliary chamber,

f f rigerant chamber which i but which When the reduction in pressure Vthe refrigerant chamber.

I provide evolve associated' with the reisnormally open occurs is forced,yby reason of the diderence in pressure between the refrigerant and the llquid sections of the refri erant chamber, to Seat itself and close' o the. auxiliary chamber from. the main chamber.

`As shownl in the drawings, the prei-'erred 65 ormof theinve'ntion comprises a container or receptacle 1, preferably of rigid material. Within this container `or main chamber there is disposed a exible-Walled refrigerant chamber formed by the connection of tivo flexible-Walled members 2 and 3. This refrigerant chamber is connected by pipes d and 5 .which act as inlet and outlet pipes to Valves 6 and 7 are disposed in these pipes to draw the flow of Huid therethrough. On the upper side of the refrigerant chamber .a valve 8 is disposed in any suitable manner. This valve is adapted to be seated on a seat 9 yformed, in

lthe opening on the upper surface of the con- 30.

4rial such as 11 andv is also connected at its upper end to a plate 12 to close it. The plate 9o 12 is adapted to be 'engaged by a. plunger plate 13 'operated by 'a lever 14 from.Y any suitable source of power (not shown). The plate 13 is provcided with a. switch contact l-g'and'the plate 12, with a switch contact 9'5 16, which are ad pted to be engaged wheny the plates 'are drawn together. i

With a 'givenffquantity of liquid in the main auxiliary chambers, the'reciproca tion of the plunger 13 will collapse the Wall 100 10, .causing the liquid therein to be forced intoy the main chamber and ver? the pressure. The expansion of the anni iary chamber will cause'the pressure within the` main chamber to be reduced. increase and reduction' in the main chamber will be exerted on the iiexible walls y2 andf of the refrigerant chamber so that thev liquid there- Within will be caused to ow out, causing a,

circulation of the refrigerant.

Whenever the pressure in the auxilio chamber or in the main chamber goesbelowg a certain Value, the pressure of the retrig craint in the refrigerant chamber will canse the Valve 25 to be n'nived against its4 seat .l, thus cutting oli connection between the auxiiiary and lthe main chambers. ri'his saine action, itis eiear, will take place Whenever the fabric ail-collapsible material o tlie wall fi() of the auxiliary chamber Springs a. leak.

Because ci this construction and operation tiere is automatic checking of the llow of iuid whenever such a condition as that described occurs.

'lfliat 'I claim is:- l. Jr rei'i'igcratingx compressor1v device, which comprises a main chamber, an au iliary clnnnbcr, a refrigerant container with-` meneer;

which comprises aA rigid-'walled main chant ber, a collapsible-nailed auxiliary chamber connected thereto, means for expanding and contracting said auxiliary chamber, said niain and auxiliary chambers containing liquid, andvineans for automatically closing he connection between the main and auxiiiary chambers when the pressure of the liquid therewithin falls below afgiven value. 3. A reirigerating compressor apparatus which coiupi'isesa rigid-walled niain chainu ber, a collapsible-walled auxiliary chamber connected thereto, a liexible-walled refrigerant chamber within the inain chamber, inlet and outlet pipes connected to said refrigerant chamber, said main and auxiliary chamber containing a liquid the pressure of which is varied, means for Varying said pressure, said refrigerant chamber containing refrigerating luid, and means carried by the re- Airigerant chamber adapted to close the connection between the niain and auxiliary'. chambers when the pressure of the liquid therewitliin ialls below a certain Value.

WiLLiAM Nuss. 

